/* index.css是用来美化首页的 */
* {
    margin: 0;
    padding: 0;
    /* 內减模式 */
    box-sizing: border-box;
}

li {
    list-style: none;
}
a {
    text-decoration: none;
}

.clearfix:before,.clearfix:after {
    content:"";
    display:table; 
  }
  .clearfix:after {
    clear:both;
  }

body {
    background-color: #f3f5f7;
}

/* 版心 */
.wrapper {
    width: 1200px;
    margin: 0 auto;
}

/* 头部 */
.header {
    height: 42px;
    /* margin-top: 30px;
    margin-bottom: 30px; */
    margin: 30px auto;
}

h1 {
    float: left;
}

/* 导航 */
.nav {
    float: left;
    margin-left: 70px;
    height: 42px;
}

.nav li {
    float: left;
    margin-right: 26px;
}

.nav li a {
    display: block;
    padding: 0 9px;
    height: 42px;
    line-height: 42px;
    /* border-bottom: 2px solid #00a4ff; */

    font-size: 18px;
    color: #050505;
}

.nav li a:hover {
    border-bottom: 2px solid #00a4ff;
}

/* 搜索 */
.search {
    float: left;
    margin-left: 59px;
    width: 412px;
    height: 40px;
    border: 1px solid #00a4ff;
}

.search input {
    float: left;
    padding-left: 20px;
    /* 左右加一起的尺寸要小于等于410 */
    width: 360px;
    height: 38px;
    border: 0;
}

/* 控制placeholder的样式 */
.search input::placeholder {
    font-size: 14px;
    color: #bfbfbf;
}

.search button {
    float: left;
    width: 50px;
    height: 40px;
    background-image: url(../images/btn.png);
    border: 0;
}

.user {
    float: right;
    margin-right: 35px;
    height: 42px;
    line-height: 42px;
}
.user img {
    /* 调节图片垂直对齐方式, middle:居中 */
    vertical-align: middle;
}

/* 轮播图 */
.banner {
    height: 420px;
    background-color: #1c036c;
}

.banner .wrapper {
    height: 420px;
    background-image: url(../images/banner2.png);
}

.banner .left{
    float: left;
    padding: 0 20px;
    /*w190+h420+bgc*/
    width: 190px;
    height: 420px;
    /* 透明效果 */
    background-color: rgba(0, 0, 0, 0.3);   
    /* 行高属于控制文字的属性, 能继承 */
    line-height: 44px;
}

.banner .left span{
    float: right;
}

.banner .left a{
    font-size: 14px;
    color: #fff;
}

.banner .left a:hover{
    color: #00b4ff;
}

.banner .right{
    float: right;
    margin-top: 50px;
    width: 228px;
    height: 300px;
    background-color: #fff;
}

.banner .right h2{
    height: 48px;
    background-color: #9bceea;
    text-align: center;
    line-height: 48px;
    font-size: 18px;
    color: #fff;
}

.banner .right .content{
    padding: 0 18px;
}

.banner .right .content dl{
    padding: 12px 0 ;
    border-bottom: 2px solid #e5e5e5;
}

.banner .right .content dt{
    font-size: 14px;
    color: #4e4e4e;
}

.banner .right .content dd{
    font-size: 12px;
    color: #4e4e4e;
}

.banner .right .more{
    display: block;
    /* margin: 4px 14px 0; */
    margin: 4px auto 0;
    width: 200px;
    height: 40px;
    border: 1px solid #00a4ff;

    font-size: 16px;
    color: #00a4ff;
    font-weight: 700;
    
    text-align: center;
    line-height: 40px;
}

/* 精品推荐 */
.goods{
    margin-top: 8px;
    padding-left: 34px;
    padding-right: 26px;

    height: 60px;
    background-color: #fff;
    box-shadow: 0px 2px 3px 0px 
		rgba(118, 118, 118, 0.2);

    line-height: 60px;
}

.goods h2{
    float: left;
    font-size: 16px;
    color: #00a4ff;
    font-weight: 400;
}

.goods ul{
    float: left;
    margin-left: 30px;
}

.goods ul li{
    float: left;
}

.goods li a {
    border-left: 1px solid #bfbfbf;
    padding: 0 30px;
    font-size: 16px;
    color: #050505;
}

.goods .xingqu{
    float: right;
    font-size: 14px;
    color: #00a4ff;
}

/* 精品课程 */
.box{
    margin-top: 35px;
}

.box .title{
    height: 40px;
}

.box .title h2{
    float: left;
    font-size: 20px;
    color: #494949;
    font-weight: 400;
}

.box .title a{
    float: right;
    margin-right: 30px;
    font-size: 12px;
    color: #a5a5a5;
}

.box .content li {
    float: left;
    margin-right: 15px;
    margin-bottom: 15px;
    width: 228px;
    height: 270px;
    background-color: #fff;
}

.box .content li:nth-child(5n) {
    margin-right: 0;
}

.box .content li h3{
    padding: 20px;
    font-size: 14px;
    color: #050505;
    font-weight: 400;
}

.box .content li p{
    padding: 0 20px;
    font-size: 12px;
    color: #999;
}

.box .content li span{
    color: #ff7c2c;
}

/* hot小图标 */
.box .content li{
    position: relative;
}
.box .content li .hot{
    position: absolute;
    right: -9px;
    top: 4px;
}

/* 编程入门 */
.programme {
    margin-top: 38px;
}

.programme .title2{
    height: 40px;
}

.programme .title2 h2{
    float: left;
    font-size: 20px;
    color: #494949;
    font-weight: 400;
}

.programme .ji ul{
    float: left;
    margin-left: 180px;
    text-align: center;
}

.programme .ji ul li{
    float: left;
    margin-right: 50px;
}

.programme .ji li a{
    padding: 0 40px;
    
    font-size: 16px;
	color:  #868686;;
}
.programme li a:hover {
    color: #00a4ff;
}

.programme .ji .more{
    float: right;
    margin-right: 30px;
    font-size: 12px;
    color: #a5a5a5;
}

.programme .content2 .left{
    float: left;
    width: 228px;
    height: 392px;
}

.programme .content2 .top{
    float: right;
    width: 957px;
    height: 100px;
}

.programme .content2 .item{
    float: left;
    width: 228px;
	height: 270px;
	background-color: #ffffff;
    margin-left: 15px;
    margin-top: 23px;
}

.programme .content2 .item h3{
    padding: 20px;
    font-size: 14px;
    color: #050505;
    font-weight: 400;
}

.programme .content2 .item p{
    padding: 0 20px;
    font-size: 12px;
    color: #999;
}

.programme .content2 .item span{
    color: #ff7c2c;
}

/* 版权 */
.footer{
    margin-top: 40px;
    padding-top: 30px;
    height: 417px;
    background-color: #fff;
}

.footer .left{
    float: left;
}

.footer .left p{
    margin: 20px 0 10px;
    font-size: 12px;
    color: #666;
}
.footer .left a{
    display: inline-block;
    width: 120px;
    height: 36px;
    border: 1px solid #00a4ff;
    text-align: center;
    line-height: 36px;
    font-size: 16px;
    color: #00a4ff;
}

.footer .right{
    float: right;
}

.footer .right dl{
    float: left;
    margin-left: 120px;

}

.footer .right dt{
    font-size: 16px;
    color: #333;
}

.footer .right dd{
    float: left;
    margin-top: 15px;
    line-height: 10px;
    font-size: 12px;
    color: #333;
}
